Валентность
Authored by Ксения Васильева
Chemistry
8th Grade
Used 2+ times
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12 questions
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1.
MULTIPLE SELECT QUESTION
1 min • 1 pt
Укажите возможные валентности атома серы
II
III
IV
V
VI
2.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Укажите атомы с постоянной валентностью
Н
Na
Cl
Fe
Al
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Укажите (римской цифрой) валентность фосфора в оксиде P2O3
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
Укажите (римской цифрой) валентность хлора в оксиде Cl2O7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Валентность Са?
1
2
3
4
6.
MULTIPLE CHOICE QUESTION
30 sec • 2 pts
Выберите ряд химических элементов , проявляющих только постоянную валентность
натрий, медь, кислород, фтор
железо, цинк, хлор
алюминий, магний, литий
алюминий, кальций, сера
7.
MULTIPLE SELECT QUESTION
30 sec • 2 pts
Переменная валентность характерна для атомов элементов
F
Fe
Na
S
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